Avengers: Endgame Encore holds overwhelming market-implied odds near 99% to finish first at the domestic box office this weekend, reflecting robust presales, widespread theater availability, and the pull of a major franchise re-release timed against a relatively quiet slate. Traders see limited competition from other current titles, whose individual chances sit around 50% or lower, underscoring the encore's expected dominance in opening weekend tracking and audience turnout. Historical patterns of superhero re-releases and strong social-media nostalgia further support the consensus. An upset would require one of the competing films to post unexpectedly high per-screen averages or benefit from a surprise marketing surge that shifts audience priorities before Sunday's final numbers.